As **FastAPI** is based on the **ASGI** standard, it's very easy to integrate any **GraphQL** library also compatible with ASGI.

You can combine normal FastAPI *path operations* with GraphQL on the same application.

/// tip

**GraphQL** solves some very specific use cases.

It has **advantages** and **disadvantages** when compared to common **web APIs**.

👆 🔜 ⚫️ ⏮️ ❎ 🌐 👆 *➡ 🛠️*.

```Python hl_lines="2  12-21  24"
{!../../docs_src/path_operation_advanced_configuration/tutorial002.py!}
```

/// tip

🚥 👆 ❎ 🤙 `app.openapi()`, 👆 🔜 ℹ `operationId`Ⓜ ⏭ 👈.

///

/// warning

🚥 👆 👉, 👆 ✔️ ⚒ 💭 🔠 1️⃣ 👆 *➡ 🛠️ 🔢* ✔️ 😍 📛.

🚥 👫 🎏 🕹 (🐍 📁).

///

## 🚫 ⚪️➡️ 🗄

```

////

//// tab | Python 3.8+

```Python hl_lines="8-10  14"
{!> ../../docs_src/request_form_models/tutorial001_an.py!}
```

////

//// tab | Python 3.8+ non-Annotated

/// tip | "Dica"

Prefira utilizar a versão `Annotated` se possível.

///

```Python hl_lines="7-9  13"
{!> ../../docs_src/request_form_models/tutorial001.py!}
```

////

```

////

//// tab | Python 3.10+ Annotated가 없는 경우

/// tip | "팁"

가능하다면 `Annotated`가 달린 버전을 권장합니다.

///

```Python hl_lines="6-7"
{!> ../../docs_src/dependencies/tutorial001_py310.py!}
```

////

//// tab | Python 3.8+ Annotated가 없는 경우

/// tip | "팁"

가능하다면 `Annotated`가 달린 버전을 권장합니다.

///

```Python hl_lines="8-11"

{!../../docs_src/path_params/tutorial005.py!}
```

/// info

<a href="https://docs.python.org/3/library/enum.html" class="external-link" target="_blank">🔢 (⚖️ 🔢) 💪 🐍</a> ↩️ ⏬ 3️⃣.4️⃣.

///

/// tip

🚥 👆 💭, "📊", "🎓", &amp; "🍏" 📛 🎰 🏫 <abbr title="Technically, Deep Learning model architectures">🏷</abbr>.

///

### 📣 *➡ 🔢*

⤴️ ✍ *➡ 🔢* ⏮️ 🆎 ✍ ⚙️ 🔢 🎓 👆 ✍ (`ModelName`):

This part is pretty normal, most of the code is probably already familiar to you:

```Python hl_lines="9-13  36-53"
{!../../docs_src/openapi_callbacks/tutorial001.py!}
```

/// tip

The `callback_url` query parameter uses a Pydantic <a href="https://docs.pydantic.dev/latest/api/networks/" class="external-link" target="_blank">Url</a> type.

///

        For example: https://github.com/jba/retract-demo/blob/main/go.mod#L5-L8.
        See https://pkg.go.dev/about#removing-a-package for additional tips on retractions.
    validations:

如果显示 `pip` 程序文件位于 `env/bin/pip` 则说明激活成功。 🎉

确保虚拟环境中的 pip 版本是最新的，以避免后续步骤出现错误：

<div class="termy">

```console
$ python -m pip install --upgrade pip

---> 100%
```

</div>

/// tip

每一次你在该环境下使用 `pip` 安装了新软件包时，请再次激活该环境。

这样可以确保你在使用由该软件包安装的终端程序时使用的是当前虚拟环境中的程序，而不是其他的可能是全局安装的程序。

///

### pip

如上所述激活环境后：

<div class="termy">

```console

```

////

//// tab | Python 3.8+ без Annotated

/// tip | "Подсказка"

Предпочтительнее использовать версию с аннотацией, если это возможно.

///

```Python hl_lines="6"
{!> ../../docs_src/security/tutorial001.py!}
```

////

/// tip | "Подсказка"

/// tip

The "PATCH" is the last number, for example, in `0.2.3`, the PATCH version is `3`.

///

So, you should be able to pin to a version like:

```txt
fastapi>=0.45.0,<0.46.0
```

Breaking changes and new features are added in "MINOR" versions.

/// tip